It was supposed to be possible in Mass Effect 1 as well, but that (along with the FemShep/Ashley romance) was ultimately cut from the game. Terminator-HIX (talk)
Really? I never heard that. I knew that there were supposed to be gay romances in ME2 at one point (and dialogue was even recorded for them), but it seems so wildly out of character for Ashley to ever be gay. Never even crossed my mind that they 'could' or 'should' have made her romanceable for Femshep in ME3, let alone 1.
There was dialogue recorded for the same-sex ME1 romances too, according to the wiki; that's how people found out about it to start with. I'll agree that Ashley isn't the kind of character you expect to go both ways, but a guy like Kaidan being bi is pretty believable, all things considered. Terminator-HIX (talk)